But he also didn’t expect what he found when he sealed his treadmill in a test chamber and measured how much oxygen the beetles consumed, and thus how many calories they burned. Kram didn’t expect ground-dwelling beetles to have a metabolism that could burn at such a high, sustained rate. In humans and ponies and dogs, he explains, if you have them carry a weight equal to 10 percent of their body weight, their metabolic rate goes up by 10 percent: 10, 10 20, 20 and so on in a proportional increase.įor the rhinoceros beetles to follow this rule carrying 30 times their weight, though, they would have to speed up their metabolism by a factor of 30-something only a few creatures on Earth, such as bumblebees, can do. To a physiologist like Kram, what was particularly mysterious was what fueled the beetles. The beetles’ feat is comparable to a 150-pound man walking a mile with a Cadillac on his head without tiring. I got bored before they got tired, says Kram. But with 30 times their own weight, things changed: after half an hour of walking, they still showed no sign of fatigue. With 40 times their own weight, they plodded for about ten minutes before becoming exhausted. They could carry up to 100 times their own weight of one-tenth of an ounce, although under that load they could barely move. When Kram put the rhinoceros beetles on a treadmill, he discovered that while they were not as strong as the Guinness Book claimed, they were still amazing. On the ends he glued lead weights he had bought from a hobby shop (they’re normally used to give model trains traction). He glued a patch of Velcro on each beetle’s back and attached to it a thin lead strip that extended over the beetle’s head and beyond its rear. Kram didn’t simply stack weights on beetles’ backs, since a little tilt would unbalance the load. Kram, a physiologist at the University of California at Berkeley, decided to test that claim in his lab. They claim that the world’s strongest animal is the rhinoceros beetle, and that it can support 850 times its own body weight, he says. While perusing the Guinness Book of World Records, Rodger Kram saw a startling entry. Inspiration can come from the strangest places. But just how strong are they? And what makes them so powerful? Failure to read the Terms prior to purchase is upon the full responsibility of the customer.Ounce for ounce, rhinoceros beetles are the world’s strongest animals. Orders are shipped entirely at the customer's own risk.įor the full T&Cs, please click on the link HERE. *Live-Arrival-Guarantee (LAG) only applies to livestock shipped via overnight services. Orders placed after Sunday 6pm (GMT) will be despatched the Monday a week later.* *During these difficult times, orders are despatched collectively once a week on Mondays to keep everyone safe. The larvae feed on decaying wood and leaf litter. The adult beetles feed on a variety of fruits such as banana, apple, pear, peach and watermelon. These are CAPTIVE BRED in my collection, with this stock originating from Martinique Island, North America. This makes these a suitable entry-species for beginners wanting to delve into rearing giant beetles. This subspecies reaches the smallest adult size out of the 9 different subspecies, meaning that less space and substrate is required to raise this particular subspecies of the Hercules Beetle. This is a special, rarely-kept subspecies of the iconic Hercules Rhino Beetle. The listing is for 1x beetle larva, of the largest beetle in the world. Scientific name - Dynastes hercules reidi
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